Lamp



FIG. 1 is a front-top-right perspective view of a lamp embodiment showing my new design;

FIG. 2 is a back-top-right perspective view thereof;

FIG. 3 is a top view thereof;

FIG. 4 is a right side elevational view thereof; the left side elevational view being similar;

FIG. 5 is a bottom view thereof;

FIG. 6 is a front view thereof; and,

FIG. 7 is a back view thereof.

The broken-line disclosure represents portions of the lamp which form no part of the claimed design. 

CLAIM The ornamental design for a lamp, as shown and described. 